import React, { PureComponent, Fragment } from 'react';
import { Alert } from 'antd';
import styles from './index.less';
import ExpandTable from '../HYExpandTable/index'

function initTotalList(columns) {
  const totalList = [];
  columns.forEach(column => {
    if (column.needTotal) {
      totalList.push({ ...column, total: 0 });
    }
  });
  return totalList;
}

class StandardTable extends PureComponent {
  constructor(props) {
    super(props);
    const { columns } = props;
    const needTotalList = initTotalList(columns);

    this.state = {
      selectedRowKeys: [],
      needTotalList,
    };
  }

  static getDerivedStateFromProps(nextProps) {
    // clean state
    if (nextProps.selectedRows.length === 0) {
      const needTotalList = initTotalList(nextProps.columns);
      return {
        selectedRowKeys: [],
        needTotalList,
      };
    }
    return null;
  }

  handleRowSelectChange = (selectedRowKeys, selectedRows) => {
    let { needTotalList } = this.state;
    needTotalList = needTotalList.map(item => ({
      ...item,
      total: selectedRows.reduce((sum, val) => sum + parseFloat(val[item.dataIndex], 10), 0),
    }));
    const { onSelectRow } = this.props;
    if (onSelectRow) {
      onSelectRow(selectedRows);
    }

    this.setState({ selectedRowKeys, needTotalList });
  }

  handleTableChange = (pagination, filters, sorter) => {
    const { onChange } = this.props;
    if (onChange) {
      onChange(pagination, filters, sorter);
    }
  }

  cleanSelectedKeys = () => {
    this.handleRowSelectChange([], []);
  }

  render() {
    const { selectedRowKeys, needTotalList } = this.state;
    const {
      data: { list, pagination },
      loading,
      columns,
      rowKey,
    } = this.props;

    const paginationProps = {
      showSizeChanger: true,
      showQuickJumper: true,
      size:"small",
      showSizeChanger:true,
      ...pagination,
    };

    const rowSelection = {
      selectedRowKeys,
      onChange: this.handleRowSelectChange,
      getCheckboxProps: record => ({
        disabled: record.disabled,
      }),
    };
    console.log('list')

    console.log(list)

    return (
      <div className={styles.standardTable}>
        <div className={styles.tableAlert}>
          {/*<Alert*/}
            {/*message={*/}
              {/*<Fragment>*/}
                {/*已选择 <a style={{ fontWeight: 600 }}>{selectedRowKeys.length}</a> 项&nbsp;&nbsp;*/}
                {/*{needTotalList.map(item => (*/}
                  {/*<span style={{ marginLeft: 8 }} key={item.dataIndex}>*/}
                    {/*{item.title}*/}
                    {/*总计&nbsp;*/}
                    {/*<span style={{ fontWeight: 600 }}>*/}
                      {/*{item.render ? item.render(item.total) : item.total}*/}
                    {/*</span>*/}
                  {/*</span>*/}
                {/*))}*/}
                {/*<a onClick={this.cleanSelectedKeys} style={{ marginLeft: 24 }}>*/}
                  {/*清空*/}
                {/*</a>*/}
              {/*</Fragment>*/}
            {/*}*/}
            {/*type="info"*/}
            {/*showIcon*/}
          {/*/>*/}
        </div>
        <ExpandTable
          loading={loading}
          rowKey={rowKey || 'key'}
          rowSelection={rowSelection}
          dataSource={list}
          columns={columns}
          pagination={paginationProps}
          onChange={this.handleTableChange}
        />
      </div>
    );
  }
}

export default StandardTable;
